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Goethite
Goethite

Hodgkinsonite
Hodgkinsonite



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Goethite
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Hodgkinsonite

Goethite and Hodgkinsonite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
HCl soluble
-
4.27-4.29
Uneven
Perfect {010}
5-5.5
FeO(OH)Arthur Thomas , Gemstones (2009)
 
-
-
-
4.06-4.08
-
{???} Perfect
4.5-5
Mn2+ Zn 2SiO 4(OH) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Goethite and Hodgkinsonite Chemical Formula

While comparing Goethite and Hodgkinsonite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Goethite and Hodgkinsonite chemical formula.

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Goethite and Hodgkinsonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Goethite and Hodgkinsonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Goethite Vs Hodgkinsonite during the identification of gemstone. Specific gravity of Goethite is whereas that of Hodgkinsonite is .